package mapper;

import org.apache.ibatis.annotations.*;
import pojo.Brand;

import java.util.List;

public interface BrandMapper {
    /**
     * 查询所有(表字段需要映射)
     * @return
     */
    @Select("select * from t_brand")
    @ResultMap("brandResultMap")
    List<Brand> selectAll();


//    单个查询
    @ResultMap("brandResultMap")
    @Select("select * from t_brand where id = #{id}")
    Brand selectById(int id);

    @Insert("insert into t_brand values(null,#{brandName},#{companyName},#{ordered},#{description},#{status})")
    void add(Brand brand);


    /**
     * 修改数据
     */
    @Update("update t_brand set brand_name=#{brandName},company_name=#{companyName},ordered=#{ordered},description=#{description},status=#{status} where id=#{id}")
    void update(Brand brand);

    /**
     * 根据id删除品牌
     * @param id
     */
    @Delete("delete from t_brand where id=#{id}")
    void deleteById(int id);



    //分页查询所有品牌
    @ResultMap("brandResultMap")
    @Select("select * from t_brand limit #{beginIndex},#{pageSize}")
    List<Brand> selectAllPage(@Param("beginIndex") int beginIndex,
                              @Param("pageSize") int pageSize);
    //查询品牌总数量
    @Select("SELECT count(1) FROM t_brand")
    int selectCount();


}
